Vise for saw filing machines



June 17, 1941. F. J. KNOWLES VISE FOR SAW FILING MACHINES Filed Dec. 2, 1938 2 Sheets-Sheet 1 m, ewe M vM autumn/1 /4 fuxaa, MW

June 17, 1941. J KNOWLES 2,245,982

VISE FOR SAW FILING MACHINES Filed Dec. 2, 1939 2 Sheets-Sheet 2 Patented June 17, 1941 UNETE VISE FOR SAW FILING MACHINES Fred J. Knowles, Philadelphia, Pa... assignor to Nicholson File Company, Providence, R. 1., a corporation of Rhode Island Application December 2, 1938, Serial No. 243,635

2 Claims.

This invention relates to a vise for holding a saw in a saw filing machine while the teeth of the saw are acted upon by a file secured in the machine. Arrangements of this general character are well known as shown for example by the Foley Patent No. 1,224,293.

The purpose of the present invention is to provide a vise which will firmly but yieldingly grip a saw on ech side adjacent the saw teeth thereof and hold it rigidly in position during the filing operation so as to produce a smooth filing operation and avoid any vibration orchattering of the saw during such operation. A further object is to provide a vise which includes mechanism' by which the position of the saw in the vise may be readily adjusted manually so that the teeth of the saw can be properly and accurately positioned relative to the file in the machine. A still further object is to provide means by which the jaws of the vise may be readily opened to permit easy removal or insertion of a saw between the jaws or adjustment of same in the jaws. Other advantages and purposes of the invention will be apparent from the following specification taken in connection with the accompanying drawings illustrating one embodiment thereof and in which:

Figure 1 is a front elevation of the improved vise as applied to a saw filing machine of the kind shown in the aforementioned patent;

Figure 2 is a side elevation of the arrangement shown in Figure 1;

Figure 3 is a vertical section on the line 3-3 of Figure 1;

Figure 4 is a horizontal sectional view on the line 4-4 of Figure 3;

Figure 5 is a vertical section on the line 5-5 of Figure 3;

Figure 6 is a horizontal section on the line 5-t of Figure 3;

Figure 7 is an enlarged perspective view of the inner jaw of the vise;

Figure 8 is an enlarged perspective View of the outer jaw thereof; and

Figure 9 is a perspective view of the adjustable table or support for positioning and holding a saw between the jaws of the vise.

As before noted, the present invention is readily applicable to various forms of saw filing machines, but for purposes of illustration it is shown as applied to the form of machine disclosed in said Foley patent. In the accompanying drawings, A indicates generally an automatic saw feeding means such as employed in said patent, and B indicates the means for supporting and operating the file, a driving motor being indicated at C. The various machines now in use also generally include a rigid part or parts to which the structure forming the present invention may bereadily attached. Such a part is illustrated at D in the drawings.

As a convenient means for securing the improved vise in position, an adapter or supporting plate i0 is rigidly and adjustably secured to the part D as by bolts ISA. The inner jaw of the vise, indicated at H, is rigidly mounted on the plate l0 by bolts or screws HA. Adjacent its upper end the jaw I I is provided with spaced out-,

wardly projecting ears l2 having aligned openings IZA therein, and adjacent its lower end said jaw ll carries an outwardly projecting lug it having therein a vertically extending threaded opening I3A. On each side of the lug It the jaw is provided with a socket I 4 for receiving and supporting the ends of coiled springs l5, as later described. A jaw piece I 6 in the form of an angle iron is mounted on the upper end of the jaw l l The outer .jaw I! of the vise is arranged in front of the inner jaw H and is provided on-its rear side with an ear i8 which fits between the ears l2 of the inner jaw, the ear it having therein a transverse opening I8A. A pivot pin I9 is arranged in the openings I2A and [8A of the jaws and is secured in the ear it of the outer jaw by means of a set screw 20. A jaw piece 2| is mounted on the upper end of the jaw I! for cooperating with the jaw piece iii of the inner jaw, The pivot pin l9 serves to pivotally connect the two jaws H and I? intermediate their length so that when the lower end of the outer jaw is moved outwardly or inwardly the jaw piece 2! is moved toward or from the jaw piece It of the inner jaw. The springs l5 above mentioned arranged between the lower ends of the jaws II and I1 are held in place by set screws 22 extending through openings 23 of the jaw l7 and into said springs. It will be understood that the springs l5 normally act to force the lower end of the jaw ll outwardly and the jaw piece 2! toward the jaw piece It of the inner jaw, so as to clamp a saw between them as indicated at S. When the lower end of the jaw H is forced inwardly against the action of the springs I5, the jaw piece 2| is moved away from the jaw piece It to relieve the clamping action on the saw S. To assist in moving the lower jaw as indicated, an outwardly projecting arm HA is secured thereto, and a chain HE is connected to this arm and to a foot pedal or lever (not shown) placed in a convenient position for the operator.

A vertically adjustable support or table 4 is arranged between the jaws II and I1, and the upper end of said support i cut away to provide spaced portions 24A between which the ears l2 and I8 of the jaws are positioned when the parts are assembled. To secure the table or support 24 in position to slide vertically, the same is provided on the inner side thereof with two gib plates 25 bolted thereto, and these plates engage and slide in undercut recesses 26" formed" on the rear side of the inner jaw II. To provide means for adjusting the support 24, an adjusting screw 21 is threadedly mounted in the lug l3 of the: inner jaw and the upper end thereof is rotatably secured in the lower end of the support 2k by means of a holding plate 28-, theupper endor head of the screw 21 preferably bearing against a ball 29 mounted in a suitable socket. in the support 24. The lower end of the screw 21 is provided with a transverse pin 21A or any other suitable means for manually rotating the same and adjusting thetable or support 2.4. The. upper edges of.the portions 24A of; the tableor. support, are provided with aligned; rectangular grooves 243, and. removably secured. in thesegrooves. is. a transverse saw supporting bar 30which may be of. any length. desired-to support a-saw inposition to. be filed; As indicated, particularly in. Figure 3, thesaw S to be filed; rests. against the bar, 39 and is clampedbetween the. jawsof; thev vise.

To operate the Vise,.the, lower endiof theouter jaw isforced inwardly by. pressure on the arm liA which will separate the jaws. A saw may then be inserted with the back thereof resting on the supportingfbar 3ll;',and"the position of this bar may be adjusted by turning the adjusting: screw 21": to move the. support 24 upwardly or downwardly. The saw. may thus, be accurately and quickly positioned with reference to. the fil'e'. mounted in the machine and also in reference'to the feed dog which moves the saw step by step beneath the file; The'jawsof the vise firmly grip andihold the'saw'on both sides'close'to' the point where the file operates on the teeth of the saw, so thatsmooth and quiet operation of' thefileonthe work is obtained.

Having;- thus described the invention, what is claimed as new and desired to be secured by Letters Patent is:

1. In a vise for saw filing machines, in combination, an inner jaw rigidly and adjustably secured to the machine and having outwardly projecting spaced ears thereon adjacent the upper end, an outer jaw having adjacent its upper end a single inwardly projecting ear arranged between and pivotally connected to the ears on said inner jaw, a saw supporting table carried by and slidably supported on said inner jaw, said table having laterally spaced portions between which said ears of the inner and outer jaws are arranged, a screw carried by said inner jaw for vertically adjusting said table, a saw supporting bar carried" by the spaced portions of said table, a spring disposed directly between the lower ends of saidjaws and being the sole means for forcing the same apart and for forcing the upper ends of the-jaws together to clamp the saw, and manually-operable means for forcing the lower end of the. outer jaw toward the inner jaw against the action of said spring to-open'saidvise.

2. In a. vise for saw filing machines, in combination, a supporting plate rigidly and adjustably secured to the machine, anI inner jaw mounted on said plate and having outwardly projecting spaced ears thereon adjacent its upper end; an outer jaw having adjacent its upper end.

a singleinwardly projecting ear arranged between and' pivotally connected to the ears on said inner jaw, a saw supporting table carried byandslidably supported on said inner jaw, said table having laterally spaced portions between which said ears of the inner and outer jaws are arranged, a screw carried by said inner jaw for vertically adjusting said table, a saw supportingv bar carried. by the spaced portion of said. table,

a spring disposed directly between the lower ends of. said-jaws and being the sole means for forcing.

the same apart and for forcing the upper ends of the jaws together to clamp the saw, and a pedal operatively connected with the movable outer jaw for forcing the lower end of the outer jaw toward the inner jaw against the action of said spring to open said vise.

FRED J. KNOWLES; 

